Vulnerability in Grokability Snipe-It
CVE-2026-86751
Snipe-IT before 8.7.0 fails to properly sanitize markdown image syntax in note fields, allowing authenticated users to read arbitrary server files and issue server-side HTTP requests. Attackers can submit markdown image syntax in checkout acceptance notes that survive HTML escaping, are expanded by CommonMark parser, and resolved by laravel-mail-auto-embed via file_get_contents or curl, exfiltrating sensitive files like .env containing APP_KEY.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2g (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/snipe-it-before-8.7.0-arbitrary-file-read-and-ssrf… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-86751?
- CVE-2026-86751 is a high-severity vulnerability in Grokability Snipe-It, classified under External Control of File Name or Path. CVSS score: 8.5/10. Published 2026-09-09.
- How severe is CVE-2026-86751?
- High severity. CVSS v3 base score is 8.5 out of 10.